Junior ADU (JADU) near San Jose, CA
Barcci Builders
16185 Los Gatos Boulevard, Los Gatos, CA 95032
7.9 miles
Barcci Builders specializes in ADU construction across the Bay Area, offering design, permitting, and build services. With 40+ completed units, they handle JADUs, garage conversions, attached, and detached ADUs, with costs ranging from $60K to $400K+.
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Intelligent Choice Builders
1437 Park Avenue, San Jose, CA 95126
4.4 miles
Intelligent Choice Builders is a licensed Bay Area ADU contractor serving Palo Alto, Cupertino, San Jose & Sunnyvale. They build detached ADUs, garage conversions, granny flats & more, managing permits, design & construction end-to-end.
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Mendez and Son's Construction Inc
39647 Iolani Ct., Fremont, CA 94538
17.6 miles
Mendez and Son's Construction is a Bay Area ADU contractor offering design-build services in Palo Alto, Mountain View, San Mateo & Walnut Creek. They handle detached ADUs, garage conversions & JADUs, managing permits to final inspection.
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ADU Builders Group
15166 Los Gatos Boulevard, Los Gatos, CA 95032
7 miles
ADU Builders Group is a Bay Area family-owned ADU contractor with 21+ years of experience. They build attached, detached, converted, and junior ADUs, offering full design-build services, permitting support, a 3-year warranty, and a 10-year structural guarantee.
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Eco Scale Construction
Sunnyvale, CA 94085
10.9 miles
Eco Scale Construction builds ADUs in Sunnyvale, Los Altos & Palo Alto, CA. Services include detached ADUs, garage conversions & JADUs. Costs range from $80K–$400K+. Fully compliant with California ADU regulations.
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Geico Builders
1901 Harrison Street, Oakland, CA 94612
41.8 miles
Geico Builders offers ADU services including detached ADUs, attached ADUs, Junior ADUs, garage conversions, and home additions. Ideal for rental income, family housing, or maximizing space on your existing property.
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Jaws Construction Services
14000 Kelso Road, Byron, CA 94514
41.7 miles
Jaws Construction Services builds ADUs, garage conversions, and JADUs. They handle permits, HOA coordination, and offer site-built or prefab options. East Bay ADUs rent for $1,500–$3,500+/month, potentially boosting property value.
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Hamilton Exteriors
21634 Redwood Road, Castro Valley, CA 94546
32.2 miles
Hamilton Exteriors builds detached ADUs, garage conversions, and JADUs across 6 Bay Area counties. Licensed (CSLB #1078806), insured, and bonded. Projects run 5–9 months with fixed-price contracts. CalHFA grants and $0-down financing available.
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Framework First ADUs
1610 Moffett Street, Salinas, CA 93905
46.3 miles
Framework First is a family-owned ADU builder in Monterey County, CA, with 40+ years of experience. They offer modular ADUs from 450–1,200 sq ft, handling permits, delivery, and installation with transparent pricing.
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Bay Builders & Remodeling
800 Charcot Avenue, San Jose, CA 95131
6.7 miles
Bay Builders & Remodeling specializes in custom ADU construction across Santa Clara, San Mateo, and East Bay. Services include attached, detached, garage conversions, and JADUs, helping homeowners add rental income, family housing, or workspace.
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Monterey Bay ADU
PO Box 51777, Pacific Grove, CA 93950
46.4 miles
Monterey Bay ADU helps Santa Cruz & Monterey homeowners explore ADU options. With 20 years experience, they offer guidance on detached ADUs, JADUs & garage conversions, plus local permitting support & trusted builder referrals.
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Clever Design & Remodeling
1630 Oakland Road, San Jose, CA 95131
6.1 miles
Clever Design & Remodeling builds ADUs across the San Francisco Bay Area, including garage conversions, attached, detached, and junior ADUs. Services cover permits, construction, interior design, and landscaping. Average ADU cost is ~$145,000.
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LRL Builders, Inc.
1661 Botelho Drive, Walnut Creek, CA 94596
42.6 miles
LRL Builders, Inc. is a licensed ADU contractor in Walnut Creek, CA, specializing in detached, attached, garage conversion, and junior ADUs. They handle design, permitting, and construction, serving Walnut Creek and surrounding Bay Area communities.
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California Bay Builders & Remodeling
2150 N 1st Street Suite 400, San Jose, CA 95131
6.6 miles
Bay Area design-build ADU specialists. One project, one point of contact — design, engineering, permitting, and construction from start to finish. CSLB #1130783.
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Edrington and Associates
5944 Claremont Avenue, Oakland, CA 94618
43.8 miles
Edrington and Associates helps property owners add ADUs—garage conversions, detached units, or Junior ADUs. They offer ADU Feasibility Studies in three packages and a free 15-minute consultation to explore options.
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What you need to know
Searching for top Junior ADU (JADU) ADU Contractors in San Jose, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Junior ADU (JADU) ADU Contractor in San Jose ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Junior ADU (JADU) professionals can guide you through every step.
San Jose homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Junior ADU (JADU) experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Junior ADU (JADU) ADU Contractors in San Jose, California, and get started today.